Reputable brands of quartz countertops include Silestone, Cambria, Caesarstone and DuPont Zodiac. Quartz countertop store brands include the Home Depot, Ikea and Lowe's, as of 2015.
Silestone began business in 1990 and has international certifications from Greenguard, ISO 14001 Bureau Veritas, NSF and LGA Qualitest GMBH. With these certifications, Silestone is endorsed by the U.S. Food and Drug Administration and the World Health Organization.
Cambria is a family-owned business that began producing quartz surfaces in 2000. Cambria is endorsed by Entrepreneur Magazine, supermodel Cheryl Tiegs, Mariel Hemingway and W. S. Holland. Caesarstone began production of natural quartz surfaces in 1987 and has since received the Good Housekeeping Seal and NSF certification.